package com.ruoyi.web.utils;

public class CodePrefixUtil {

    public static String NPJGPREFIX = "npjg";

    public static String NPJJPREFIX = "npjj";

    public static String NPSQPREFIX = "npsq";

    public static String LETTER_INDEX = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    public static String NUMBER_INDEX = "①②③④⑤⑥⑦⑧⑨⑩";

    public static String getIndexStr(String source, Integer index) {
        return source.substring(index,index+1);
    }

}
